(2013). Oral health surveys: Basic methods (Fifth edition.). World Health Organization.
Cita Chicago (17th ed.)Oral Health Surveys: Basic Methods. Fifth edition. Geneva, Switzerland: World Health Organization, 2013.
Cita MLA (9th ed.)Oral Health Surveys: Basic Methods. Fifth edition. World Health Organization, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.